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Effects of dimethyl sulfide on the reaction of dibutylcopper reagents with α,β-unsaturated ketones

✍ Scribed by Celia L. Kingsbury; Kelly S. Sharp; Robin A.J. Smith

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
623 KB
Volume
55
Category
Article
ISSN
0040-4020

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✦ Synopsis

Addition of Me,S to a I:2 CuuBuLi mixture in toluene promotes 1,4-over I,Zaddition in reactions with a representative selection of c@-unsaturated ketones. Unlike similar reactions studied with dialkyl ethers, the effect of Me,S is not related to the amount of lithium salts in the reaction medium. The results are related to current mechanistic theories of organocuprate reactions.

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